Table 3 Heavy metal limits in fertilizer established by some European Union countries (mg/kg). ‘—’ means the standard of relevant heavy metal concentrations have not been stipulated.
From: Tracing heavy metals in ‘swine manure - maggot - chicken’ production chain
Zn | Cu | Cr | Ni | As | Pb | Se | Cd | |
|---|---|---|---|---|---|---|---|---|
Austria | 1000 | 400 | 150 | 100 | — | 500 | — | 4 |
Belgium | 1000 | 100 | 150 | 50 | — | 600 | — | 5 |
Denmark | — | — | — | 45 | 25 | 120 | — | 1.2 |
France | — | — | — | 200 | — | 800 | — | 8 |
Germany | 400 | 100 | 100 | 50 | — | 150 | — | 1.5 |
Italy | 500 | 300 | 100 | 50 | 10 | 140 | — | 1.5 |
Spain | 4000 | 1750 | 750 | 400 | — | 1200 | — | 40 |
